Inventor · disambiguated record
Ramon C. W. Chea, Jr.
Also filed as: CHEA JR RAMON C W · CHEA RAMON C W JR
27 granted patents·785 citations·filing 1977–2004
97Inventor score
Top patents by PatentIndex Score
27 records- 0195US6574313B1Voice over DSL method and system for supporting a lifelineTURNSTONE SYSTEMS INC·Filed 2000·Granted Jun 3, 2003·84 cites·38 claims
- 0293US6574309B1Remotely actuated splittler bypass system and methodTURNSTONE SYSTEMS INC·Filed 2000·Granted Jun 3, 2003·53 cites·31 claims
- 0392US4349703AProgrammable ring signal generatorITT·Filed 1980·Granted Sep 14, 1982·97 cites·12 claims
- 0492US4315106AApparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systemsITT·Filed 1979·Granted Feb 9, 1982·45 cites·11 claims
- 0591US6546089B1Method and system for supporting a lifeline associated with voice over DSLTURNSTONE SYSTEMS INC·Filed 2000·Granted Apr 8, 2003·54 cites·14 claims
- 0688US6903939B1Physical architecture for design of high density metallic cross connect systemsTURNSTONE SYSTEMS INC·Filed 2002·Granted Jun 7, 2005·54 cites·7 claims
- 0788US6553105B2Enabling and powering of remotely actuated bypass splittersTURNSTONE SYSTEMS INC·Filed 2002·Granted Apr 22, 2003·29 cites·7 claims
- 0888US6453016B1Method and apparatus for detecting and locating a fault in a telecommunications environmentTURNSTONE SYSTEMS INC·Filed 2001·Granted Sep 17, 2002·43 cites·16 claims
- 0985US4317963ASubscriber line interface circuit utilizing impedance synthesizer and shared voltage source for loop current regulation controlITT·Filed 1980·Granted Mar 2, 1982·44 cites·17 claims
- 1083US4387273ASubscriber line interface circuit with impedance synthesizerITT·Filed 1980·Granted Jun 7, 1983·40 cites·20 claims
- 1181US6480575B2Structure and circuit topology for a remotely actuated bypass splitterTURNSTONE SYSTEMS INC·Filed 2002·Granted Nov 12, 2002·16 cites·21 claims
- 1278US6671149B1Systems and methods for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devicesTURNSTONE SYSTEMS INC·Filed 2000·Granted Dec 30, 2003·28 cites·32 claims
- 1377US4431868ASolid state telephone line interface circuit with ringing capabilityITT·Filed 1981·Granted Feb 14, 1984·29 cites·7 claims
- 1472US4456991ATelephone line circuit and systemITT·Filed 1983·Granted Jun 26, 1984·23 cites·19 claims
- 1568US6700770B2Protection of double end exposed systemsTURNSTONE SYSTEMS INC·Filed 2002·Granted Mar 2, 2004·8 cites·21 claims
- 1667US6343114B1Remotely addressable maintenance unitTURNSTONE SYSTEMS INC·Filed 1999·Granted Jan 29, 2002·38 cites·30 claims
- 1767US6292540B1Battery injection and loop supervision for DSL environmentTURNSTONE SYSTEMS INC·Filed 2000·Granted Sep 18, 2001·9 cites·66 claims
- 1863US4656659AProgrammable ring signal generatorITT·Filed 1985·Granted Apr 7, 1987·22 cites·9 claims
- 1963US4598173AInterface circuit for a subscriber line circuitITT·Filed 1984·Granted Jul 1, 1986·21 cites·10 claims
- 2063US4435803AAnalog subscriber/trunk module with shared ringing source and ring-tripITT·Filed 1981·Granted Mar 6, 1984·17 cites·21 claims
- 2162US6937157B1Smart cable for design of high density metallic cross connect systemsTURNSTONE SYSTEMS INC·Filed 2002·Granted Aug 30, 2005·6 cites·17 claims
- 2261US6741675B2Method and apparatus for generating an audible tone in DSL environmentTURNSTONE SYSTEMS INC·Filed 2001·Granted May 25, 2004·7 cites·16 claims
- 2360US6870724B2Protection of double end exposed systemsTURNSTONE SYSTEMS INC·Filed 2004·Granted Mar 22, 2005·3 cites·8 claims
- 2455US6683768B2Circuit topology for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devicesTURNSTONE SYSTEMS INC·Filed 2002·Granted Jan 27, 2004·1 cites·20 claims
- 2549US4674119AWide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitryITT·Filed 1984·Granted Jun 16, 1987·8 cites·16 claims
- 2637US4602130ADual voltage source feed circuit configuration for a telephone line circuitITT·Filed 1984·Granted Jul 22, 1986·3 cites·14 claims
- 2734US4150368ASignal coding for compressed pulse code modulation systemITT·Filed 1977·Granted Apr 17, 1979·3 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →